Objective: To determine the relationship between blastocyst growth parameters and birth weight.
Design: Cohort study.
Setting: University-affiliated fertility center.
Patient(s): In vitro patients who delivered a singleton after a single-blastocyst transfer.
Intervention(s): None.
Main Outcome Measure(s): Birth weight adjusted for gestational age at delivery and gender, with adjusted birth weight examined for association with blastocyst scores and grades.
Result(s): After standard in vitro fertilization (IVF) and thawed embryo transfers, greater birth weight was associated with a higher inner cell mass grade. The grade of the trophectoderm and stage of the blastocyst did not relate to weight.
Conclusion(s): Embryonic growth as early as day 5 can predict the progress of fetal development as measured by birth weight.
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| http://dx.doi.org/10.1016/j.fertnstert.2014.10.039 | DOI Listing |
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